RT Conference Proceedings T1 Approximation theory for weighted Sobolev spaces on curves A1 Álvarez, Venancio A1 Pestana, Domingo A1 Rodríguez, José M. A1 Romera, Elena AB In this paper we present a definition of weighted Sobolev spaces on curves and find general conditions under which the spaces are complete. We also prove the density of the polynomials in these spaces for non-closed compact curves and, finally, we find conditions under which the multiplication operator is bounded on the completion of polynomials. These results have applicationsto the study of zeroes and asymptotics of Sobolev orthogonal polynomials. PB Universidad de La Rioja SN 84-95301-56-3 YR 2001 FD 2001 LK https://hdl.handle.net/10016/6490 UL https://hdl.handle.net/10016/6490 LA eng NO 17 pages, no figures.-- MSC2000 codes: 41A10, 46E35, 46G10. NO MR#: MR1882649 (2003c:42002) NO Research of V. Álvarez, D. Pestana and J.M. Rodríguez partially supported by a grant fromDGI, BFM2000-0206-C04-01, Spain. DS e-Archivo RD 17 jul. 2024